Embossing-machine.



0. E. STRAWN.

EMBOSSING MAcHmE.

APPLICATIUN FILED MAR- 4. ISIS.

Patented Dec. 5,1916:

8 SHEETS-SHEETI O. E. STHAWN.

EMBOSSING MACHINE. APPLICATION FILED MMI. 4. I9I5..

Patented Dec. 5, H916.

8 SHEETS-SHEET 2,

KI@ @NSI E@ v@ Si @UQNIN @Q xv.. .SMV/I., A.. E ITI WQ@ 0. E. STRAWN.

EMBSSING MHNE. APPLICATIQN man MAH.4.1915,

Patented Deo. 5, 1916.

8 SHEETS-SHEET 3.

mi mw, wm Nd N. wr MM WWW WIW O. E. STRAWN. Emaossm MACHINE.

APPLlCATON FILED MAR. 4. 1915.

/NVENTR 0.1i, STRAWN. EMBOSSING-MACHINE. APPLICATION FILED MAR. 4. 1915.

Patented Dee. 1916.

8 SHEETS-SHEET 7.

wg/WUR Ora/ZY Palaia O. E. STRAWN. EMBOSSKNG MACHINE. APPucATloN man MAR. 4. w15.

Patented' Dec. 5,19%.

v8 s HEETS-SHEET 8.

jrrnn sfrArEs ruim ormoni.

' y one. E. srnAwN or Boisn, inmiio.

EMBossINsMAoimn.

To allywhov it mag/concern Be it known that l, ORA E. STRAWN, a

citizen of fthe United States, residing at Boise, i'n the county of Ada and State of Idaho, have invented new and useful Improvements in Embossing-Machines, of which the following,r is a specification.

My invention relates to embossing' vma.- chines of the'type suitable for ilse 1n connection with the Crump `process for embossing .in which a fusible powder is dusted, onto si freshly printed surface, the ink of which is Vnot `yet dry, so as to cause the powder to adhere to theink, after which heatis applied, thiisaiiectingr the molecular condition of the powder and causing the printed'letters to apparently swell, and at the same time harden. liy my improved apparatus, I seek to facilitate the performance of the` different steps lof the processv referred to.I

My apparatus is used in connection with a i printing press, say, a job press, and operates upon the sheets lone at a time as they are received from the press.. Each sheet is by my device taken up, and placed in a position to receive the fusible powder. The powder is then dusted on bya'ction of special mechanism for the purpose. the excess ofr powder being; removed by action of compressed air and properlytaken care of; the'sheet being then subjected to the action of heat for a moment, und iiiiully transferred to a, jogging board. and there brought into registry with y other sheets similarly treated.

, M y "invention further compreliends means for taking care of charges of the fusible powder under conditions where, owing to theioccasional skipping of a. sheet bythe press Lor by the press feeder, it liappeiisthat iio sheet isin position ready to receive the powder it the time when the 'charge of powder would otherwise be thrown upon the sheet.

Mvy inveiitimi includes nieansiory yturning thev "inf somennstances, und

fespeciallyA iithe sheet be in the form oli an envelop, kor if for any other reason it happen'sjthat' the liest' should be applied to the face 'of the sheet`^fther than tothe back thereof.- "ij Y My invention' also' contemplates various improvements in mechanism of this general character, for improving its eliicieiioy.v

Reference is iliade to the accompanying" '.draiviiigs, forming a, part ot tliisspeciicaspeciiimionof Letters Patent. l

Patented Dec. 1211916.

Appimionffuea March 4, 1915. Vsemi No. 12,156.

non, mi in 'which like ieders indicare iik@ parts.

Figure 1 is a planview of my'embossing .machine coiiiplete,` together with. parts iminediately associated with it. Fig'. 2 is a vertical section on the line 2-2 of Fig. 1,`

and looking' toward .the machine as therein shown. F ig. 4 is 'effragrxientarysection on the line 4-4 of Fig. 1, looking in the direction of the arrow, and showing.; a portion of the powder feeding mechanism. Fig'. 5 isa. horizontal section on the line of Fig. 4, lookingin the direction of the arrow, end showing the dischargeoiitlet for 'the powder. Fig. 6 is a detail view, showing si slide used for periodically 'opening and closing the discharge outletfor the powder. Fig. is a plan view of certain gearing' and other mechanisi'n shown atthe left of Fig. 4, and'used for controlling' the discharge of the powder.

Fig. S is a vertical section on the line of Fig.- 7, .looking in the'direction of the arrow. Fig. 9 is n' perspective showing a bracket usedy as a. part of the mechanism in Fig. 8. Fig. 10 is a fragmentary side eleva#4 tion showing certain mechanism appearing at the left oit' Fig. Land used for controlling certain `rearing and other parts for actimting the movement of the powder. Fig. 11 is a. fragmentary end elevationof the mechanisin shown in Fig'. 10 sind :it the left of Fi, .i;.`y il. Fig. 12 is a detail view, showing the heatingl mechanism and means for supplying rQjas thereto.

of the arrow. Fig. 1l is a fragmentary ver' tical section, on the line 14--14 of. Fig. 3,-

. 4 Fig. 13 is a section on the line i: 12B-18 oi Fig. 12, looking iii thedirection.;

looking in the direction of the arrow. Figff'. 15 is a. detail vie\v,.showing in side velevation' a part or the mechanism fortiirning an en velop or the like, after the same has been dusted with the iisible powder. y

`While my apparatus msi-y be applied to icc diierent kinds of printing presses, I will for, convenience describe it :as applied t0 anys;v

board, or feedy tables. Y

endl ntl? is the flyy shaft. Mounted rigidly upon the fiy sheft and driven thereby,is the ily wheel'lS of thev press. Upon the fly miv Thefee'd board of thepress eppeers atlt,

turn eccentricall'y and thus bind against the- By turning these handles'the upper and lower members of the container shelves 75.

are gripped tightlytogether, so as to clamp the slide 71, or separated, so as to disengage this slide, as the ease maybe.

Mounted upon the lower edge of the hopper 65, and disposed parallel with each other, aretwo rails 77 which are rigid` in position. Slidably engaging the rails is a slide 78,01? the form indicated in Fig. 6.

, This slide is provided with aA pair of longitndinal flanges 79, disposed parallel lwith each other .and adapted to` fit over the rails 77. The sliderr is provided with an open inf.,r 80,-'and with a pair of racks 81 disposed upon opposite sides-of the flanges 79and the opening S0. Mounted rigidly upon the i shaftl 70 aretwo gear wheels 82, which mesh ked in position upon the rails 77.

with the racks 81 when the slide 7 S is mount- S the shaft 7 0 rotates back and forth` the slide 7 8 is moved backward and forward relatively to the container, and the feed-paddles 08 and (39 are .turned yin accordance with rotarv movements of the shaft.

Mounted upon one end of the shaft is a gear wheel S3, located adjacent to a bearing 84 which supports one end of the. shaft 70, the other end' thereof being iournaled in the frame.

raak S5, movable in the general direction of the length of the frame 22, engages and rests upon the rear wheel 83. A leaf sprint: is carried by a flange 87'forming a part of a bracket SS, the latter being supported by a cross bar 89. whirh is shown in Fig. 7 bydotted lines. The leaf spring S0 is partially disposed within the path of travel of the rack 85. and is adapted to be actuated by this rack, so as to rock the bracket 88. This bracket carries a pair of spring fingers 88 which extend downwardly and engage opposite sides of a shaft 00, so as to serve as a bearingfor this shaft. Another bearing),r 91 engage@ the shaft just mentioned, and is carried oy the frame work. A sprocket wheel 93 is mounted rigidly upon,` the shaft 90, and engages the sprocket chain 43, whereby it is driven.'

A gear wheel 94, located near thesproeketV wheel (see Figs. 7 and 8) is supported by aid of a bracket 95, this 'bracket being `provided with extending lportions, 95, 95,",

and mating the portion 95bis alaraeket member 96. The wheel k94?? is mounted` rigidly upon a shaft 97, and meshes with a gear pinion 99, which is mounted rigidly upon a shaft 98. This shaft, by its rotation, turns the feedI paddles 69, and thus causes the powder to pass downwardly from the `container, and rotation of the shaft 98vis accomplished by shaft 70 through the various gear elements as will be now more fully set forth. n

As the rack is moved.backwardv` and forward, the leaf spring SG is alternately placed under tension and released, so thatv the bracket 87 is Lrocked.sliggghtlvy For this purpose the bracket' is mounted upon a pivot pin 100 carried by the bar 89. Eachv time the spring 86 is placed under tension by the rack 8:1 moving bodily en'dwise; in the direc?- tion ofthek spring, the gear V101 is shifted into mesh with the gear 102, so that the shaft 98 rotates, andthe feeding mechanism is thus thrown into' operation.- Eaehtime the rack 85 moves in the reverse direction, however, the gear 101 is unmeshed from the ygear 102 andthe shaft 98'stop's turning, the

feeding mechanism thus being renderedl idle. The shaft- 98 therefore rotates intermittently in a single direction. Each timertheshafty 70, by its rocking movement, causes the slide 78 to rclose the lower end of the hopper 65, the shaft 98 momentarily stops turning.

Every time the yslide 7 8 opens the lower end of thehopper` the shaft 98 starts to turn, so

that the powder is fed downwardly so long as the hopper remains open.

A leaf springt 103 is used for normally holding' the shaft 90 in such position that the gear 101v is out of mesh with the gear. u'heel 102. y p

ln order to aetuate the rark'SS, l provide a connecting rod 10i, secured to it by a pivot pin 105. 'Ihe ronneetingnrod 104 isseoured by another pivot pin to the upper end of an arm` 107, this arm being secured rigidly upon a rocking shaft 10S, which is journaled in bearings 109. Y

Mounted rigidly upon the shaft A108 and extending',downwardlyfrom the same is an arm 110. Mounted loosely upon tli`eshaft 10S is another arm 111. ('lonnected with the lower end of the arm v110. by means of a pivotpin 112, is a slide bar`113. Parallel with the slide bar 113 is another slide bail 1131wvl1ieh is pivoted -to the arm 111. The slide bars 110, 'l 13a are of the form indicated' in'lfigr. 10, and provided with a. slot-114; A guide pin 115 extends through th seslots, and is secured rigidly to the fram. work. The slide bar 119' carries an arm r1.10,'and

the slide bar 113a carries a somewhat shorter' BESTAVAILABLE COP Mounted rigidly u; or; the druiu shaft il? is a cam wheel 12S, r`ted outside ot' the frame work, as indicated in Figs. lll and 1l.

The Cain wheel 128 carries on itsI peripheralA Surface a plate 128, having lthe general aiouate form am." proviiled with projeet'ng bosses 121) and ifi The plate 12H" is t'urther provided with two slots 1:11. staggered slightly in relation to eachother. and extending thrdugh these slots are sei-owe 132 whereby the plate is 'heldin position upon thel eain wheel 12S. and is rendered adjiist-` able relatively to the saine. 'lhe rani wheelearries another plate 12S", somewhat sinnlar to the'plate 128m. and provided witli'two bosses 12121 and 1351, 'AS the drunishaft '3T is turned, the cani wheel 128 rotates eontiniioiisly,"so that the bosses 12H. lldengage theqiinn 111). 119, thus moving the bai-.s` '113,

113L to the left aeeording to Fig. 10.` Then the bosses 1212-, 1212i, engage the pins 121. 125, and eause the bars 1121, 113"l to-inove to the right according to Fig. l0.

As thi, plates 12S, 12S are diainetrimilly opposite, each other upon the cani wheel 128,'v

and as the. pins 124, 125 are not quite dia inetrieally opposite the pins 11H and 1111, the bars 113 and 113 i'eiiia'iii most of the time in their extreme position to the right according to Fig. 10. and dwell tor a eoniparatively short time inV their position' to the left according to said ligure. 'flhat isi to say; aeeordiiig to Fig.Y '10, the shaft 101%l rocks iii-st iii ay eloeliwise dii'erlion and quickly afterward roi'lis in a contraelmikwise direrlioii. and then remains stationary for a comparatively long period ot' tiine` representing approxiiiialely the iiuie required for the eaiii wheel 12S to iiial e` half a ifeyolution. 'lhe rocking ot' the shaft 108 eontiols the inoreiiients of they eonneeting rod 104. i'aelc S5, and shafts T0 and 98, and through these nienil'iers roiiti'ols the distribution' of the. powder troni the container.;

The. net result is that atintei'vals the lower end oli the hopper is vopened and then qiiiekly yclosed, and during the time, while the liopperieiuains open, the leed paddles dans the discharge of a `Qiiiall quantity ol the powder. i

'llie arm lll, carried by the. i'mfking shaft and 10) extends through 10S (see, Ifigs. 3 a. slot 'litt in a sliding liar 1"r mi, this liar traine work, and supporto a. bearing I t being supported ,by slideway brfiekets 13G. 'lhe sliding loar` 135 is connected rigidly with a rod .135tlieflatter thus virtually forming a continuation ofthe bnr in question, and with it used,aS hereinafter described` yin `connection with Acontrol of the air supply,

l provide three doors 137, 137, 137, for

readily aeeeseible. These doors are mounted upon hinge` 138. kThe door 137 is provided with two hand holes 139 und 140.

'lhe heating mechanism-that is, the burner mechanism and paits associated therewith for heating the Sheets-is Shown more. partieularly in Figs. y12 and 13.

- proteetin'g various parts and rendering thein A bracket A111 is fixed rigidly tothe i 141% Aminted within this bearing is a sha earrying a hand wheel 144. Mounted rigidly upon the shaft 1411` is a gear wheel 1121. Meshing with this gear wli'eel is u rack 1422 carried by a sleeve 142. the hand wheel 114 the Sleeve 142 isralsed or lowered. Extending through the sleeve "112., and secured rigidly te tlies'ame, is a burner tube 1415 connected with. allexible By turning i gas tube' v146.` l`heburner tube 145 carries ,Y

a val've'lfl? yprovided with a hand wheel 11H `whereby it is operated. The burner tube also carries a bulb 149, provided with y The/:burner tube'elso air inlet holen 150. cai-ries a Tf 151 supportingtwo lon itudlnal burners 1521, disposed parallel wit i each other.

The operator by turning the hand wheel` 118.-regiilates the. supplyyof gas, and' by turning ther hand .vlieelY 14:4 the burners may be raised or lowered relatively t0 the `stoek. 'lhe burners are covered by a hood 15:1", l'or distributing,ir the heat uniformly. This hood isprorided at its top with ii. glass window 15B", through which the stock muy be observed. 'llie hood acts Somewhat as an oven.` lt holds the 'heat down upon the Stock. i

'lwo pipes 151 and lead from the air pump 21 to the embossing',machine. The

pipe 155 is connected with a pipe` 156,'/tlie latter eoiniiiiinieatin i' with a i- 1136""and this pipe 151i earries :in air nolx/.le 157.

An air funnel 158 is connected with a pipe 15S), leading to the upper portion. ofthe powder container 62. Below the powder eontaii'ier is afunnel 160` which is connected bv a pipe ltil'aiid a valve 162 ywith the pipe.

1215), lhitween the `funnel 158 and the adjaeent portion of the pipe 159 is a valve 163.

Between the pipes: 156 and 156* isiinothei" va l ve 164.

. valveslialt is shownnt 165 (see Fig. 1l) and yis by pivot pins 4166 connected with thereroluble nieiiibeis 166 'of the vulvesk lt'aiid 1154. 'lhe valve shaft. 165 carries an arm 167, the latterheing provided with the4 valves just mentioned are actuated* by the action of the WheelV 1 28, The valv'es 163 and 164 are actuated by movements of the sliding bar. 135, the latter being carried in the direction of its length by therocking of the arm 111, this arm being actuated by the bar lla.

The parts are sogni-ranged and propor- V tioned as to allow the paper to travel, after receiving the powder', itothe* point Where the compressed air is applied. A pipelGS leads downwardly from the top of the container `3f62,.,and}is connected with the pipe v'155. 'A 'l .-ffskeletonframe 169?, mounted upon the pipe '1719; extends linto the container, and 'carries avgaulzie member 169", and a piece 4oft'elt 168-` Qtlnefse parts, constituting aj screen to VP1179 powder from entering the\ pump :Compressed air isf..suppliedy `from the pump 21 throug'hjtheipipe 154,` .and raried air isdrawnBiutothe pinnpdrom the pipes 1139, y155. ASince they valves 163 and 1641 periodically vopen and close, as .above described, the air supply is intermittenti,

When compressed kair Vis being discharged from the-nozzle 157, air is owing into the :tunnel `158. Air alsofiows intothe funnel 160 Whenever the valvelg162 is opened, thus tiking upthe powder that has accumulated t 1ere. y After, a printed sheet is fed into the machine Mid; passes beneath the powder container b2, so that a small charge of powder is de osited upon it,tl1e compressed air from iaiil toazlel? removes all excess of. powder this deposited, and such excessis carried into theffunnel 158, and thence drawn upwardly through the pipe159 into the-upper portion of the powder container,62,` Thepovvder slide 71,`the powder is let down into the .louer portion otA the container.

n orderfto ,produce and maintain a par trai vacuum in the upper portion of the cony tailnct), a partial kvacuum is constantly nuiintained in the pipe 169, by action ol' the air pump21. This pipe, by its suction upon the an; within the container, is unable to carrv any of the powder along u ith it, be- -aumL ci? the pipe being screened by the parte 185i, 1139* and 169, as above explained.

1n embossing certain kinds of stock and particularly envelope, l iind it expedient to turn them over Vafter the powder is made to adhere to the .letteripg carried byV them. l will now describe the mechanism used for turning such pieces of stock.

. lthe cam 170,. carried by the'drumishat 37, is engaged by a cani pin 171, thelattler being mounted upon a rod 172, and this rod being slidably mounted in bearings 173, as may be understood fromFig 2. The rod 172 carries two nuts 174, 175, and vlocated between these nuts is an arm 176 mounted upon a pivot 176-@ and provided at its lower end with an eye 177, through which a portion of the rod, 172 extends. y

,The arm 176 carries at its upper end an eye 178, and extending through this eyes rod 179. Encircling this rod is a small slide 180, whichr ispivotally mounted upon the upper end of amarm 181. Ths'arm is rigidly mounted upon a shaft 182, extending across the machine anv journaled in bearings 183. 0 'Loosely en ircling the rod 179y kis a ring 181, this rinfi being secured to a fingers' v187, each provided at its outer or free end with a hook 187, as indicated more particularl` in Fig. 15., n The sprocket vchains/13 coact 'with the mechanismused for turning the piece of stodk, andy for this purpose are provided with projecting bosses 189. A piece of stock f to ,be turnedin this instance, an envelopis shown' at 188 in Fig. l5.- As thepiece of stock is carried along by the bands 39 and sprocket chains 43, the piece 'of'.r stock rests with one of its edges against a pair of bosses 189, as indicated in Fig. 15.. As soon as the opposite edge of the piece of stock reaches the hooks 187, the springs 187 are swung upwardlyby a roclringmovement of the shaft/ 182, .and as this occurs thetravel of the bos/ses 189 causes the. piece of stock .to beturned bodily. over, after which it cnntinues its travel until it reaches its jogging board 45. The rocking movement o3 the shaft 182 is accomplished as follows: the, sliding movement o'f the rod 172, in the gen- .Y

eral direction ofitslength, causes the arm' 176 to rock upon the pivot 176g. and this movement of the arm 176 causes the rod 17 9 to move in a direction of, travelepproximately contrary to that of the rod 172. At first the rod A172 slides freely through. the eye 177, but when the nut 175 lodges against this eye the arm 17 6 begins its rocking movement upon its pivot.. Whenever the rod 179 is thus vmoved to the left, according to f F ig. 2, the ring`18i carried by the spring turns the arm 181, causing the 'shaft 182 to rot-lr ina contraclockwise direction according to Fig. 2. This causes the rockingott' the shaft 182, and in so doing causes the envelop to be turned during its travel.

186, lodgesl against the Slide 180 and thus y normal level.

rods 172 and 179, the shaft 182 may be turned by hand so as to `swingr the spring fingers 187 upwardly and backwardly, so that their own weight together with that of the arm 181 and parts carried thereby, will maintain the spring fingers 187 inactive for the time being.

For preventing premature travel of the sheets of stock after they are carried up and left resting4 upon the rollers 56, I provide dogs 190, which are simply pendant weights adapted to hang or rest against the adjacent edge of the stock, said dogs hanging from the front of frame G1 that supports the powder container, and are shown in Fig. 4. Ihe mere travel of the bands 39 is insufiicient to disengage the sheets of stock from the dogs just mentioned, but when the bosses 189 (see Fig. 15) engage the stock and carry it forward by positive pressure, the dogs simply swing out of the way.

The operation of my device may be readily understood from the foregoing description. The various parts being constructed, arranged and assembled, as above described, and the machine being brought into communication with a printing press, as indicated :fragmentarily in Fig. 1, the air pump is .started into action, the burners are lighted,

and thc various adjustable parts are suitably iid'usted. l

`he operator now passes the sheets, envelops, or other pieces of stock into and out of the printing press, and as each piece of stock is removed from the press it is laid upon the bands 47 of the coiiveyer 413. Tho travel of the bands 47 carries the piece of stock from the rinting press 1G until it rests upon the rollers 56. The rollers carry the piece of stock onward in a horizontat direction, so that the piece of stock lodges against the guides 57. llere it stops, until engaged upon its lateral edge by bosses 189. whereupon it begins to travel in the general direction of the embossing machine. The rollers 56 are held above tapes 39, 39b by their bearings so that the rollers receive the sheets from the bands 47 and carry them to the opposite side of the conveyer and up against guide 57, which is still higher than the rollers; when cach cross rod of the conveyer carrying the bosses 189 comes to the g'i'i'ide 57 such i'od passes up aiid.'on for fentire length (see Fig. 2) andfcarries KAe sheet with it and then drops back to its Passin under the dogs 190 as above described, t e sheet next travels beneath the container. Here 'i small charge of the fusible powder di'ops from the container upon the sheet, as above described. Compreed air is next blown n on the sheet, and removes all excess of t e powderthat is, so much of the owder as does not: actually adhere to the he print` ing letters. The excess ofyp thus removed enters the funnel 158, and is -thence drawn by suction into the upper portion of the container. n

At the beginning of the operation a suitable supply of the powder within the container is transferred into vthe lower coinpartment thereof, which is done by dis lacing the slide 71 slightly, and then pushing the slide back into its normal position. As the powder thus transferred into the lower compartment of the container is used up, more of the powder is let down from the upper compartment.

'Ilie sheets next pass along and, in the case of envelops, are turned over as above described. 'llie sheets next pass over the burners, and are heated momentarily. The fusible ,powder adhering to the printed 1etters, being thus acted upon by thc heat, causes the letters to practically swell, and stand out in relief, as if projecting slightly from the face of the aper. The slieet.thus finished has substantially the saine appearance as if it had been subject to pressure in a press used for embossing. The finished sheets are finally discharged into the jogging board, where they are turned up or brought into exact registry.

`While. in this instance I show a gas burner for furnishing the heat required, it will ber -understoodthat I may employ any other heating means for the purpose. It will also be understood that various other portions of the mechanism described may be varied without departing fromV the spirit of the invention.

The purpose in Constructing the lower part (Si of 63 in a single iece of resilient sheet metal is to form a se f-closing bottoni so that when necessary to get access tothe feedingr mechanism, the lower portion (il can be lifted out of hopper (i5 off the Wedges (i7 whereupon the resiliency of the slicct metal causes the slot |36 to immei'liately close and the part 64 can be lifted out with thc contained powder.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is as follows:

1. An embossing machine comprising a frame, a conveyer joui'iialed upon said frame and adapted to rest partly uppn the feed boardA of a printing press, means for removing a printed sheet from said conveyer and for causing said slice-tto travel along after leaving said conveyer, means for changing the direction of said sheet while in the act of being thus carried along, a powder container, mechanism enacting with movements of the sheet for causing the fusible powder to adhere to printed letters upon the sheet, heating mechanism for mising the temperature of said sheet in order to aiect said fusible powder, and means for turning said sheet in order to expose the lettering thereof to the direct action of the heat.

2. In an embossing machine, the combinas .tion of means for causing a printed sheet to travel bodily along,a powder container disposed adjacent to the path of travel gf said sheet,'a slide for opening and closing said powder container, means for periodically actuating said slide in order to dis- 1.0f said container 'upon said sheet, means for charge measured quantities of powder from directing an air current upon said sheet in order to remove therefrom any excess of said powder, and heating means kfor saidl sheet.

3. In an embossing machine, 'the combination of means for supporting a printed sheet and for carrying`said sheet -bodily along a predetermined path, a powder container located adjacent said path and provided with an opening for discharging a powder, a slide movable relatively to said container and provided with an 'opening -for discharging quantities of powder passing through said opening of said container, means for periodically actuating said slide in order to' cause a periodical discharge of powder upon the sheetfpneumatic mechanism for vblowing a current of air upon said sheet in order to remove any excess of powder resting thereon, and vacuum mechanism connected with said container for transferring thereinto the excess of powder thus removed from said sheet.

In an embossing machine, the combination of means for carrying a printed sheet along a vpredetermined path, a powder container disposed adjacent to said path and provided with an upper compartment and with a lower compartment, means for periodically (mening and closing said lower compartment in order to control thedischarge of powder therefrom upon said sheet, nieans'for removing excess of powder from` said sheet and for transferring said excess of powder into said upper compartment .of

`said powder container, and means controllable at the 'wilhofthe operator fortransferring' powder from said upper compartment of said container into said lower compartment tliiereof. Y

5. In an embossing machine, the combi-- nation, with means for supporting and mow ing a printed sheet alonga predetermined path of travel, of a powder container with an upper compartment n' and with a lower compartment, a 4 slide extending `beta/veen saidl upper `compartment and said lower compartment and serving as a partition for separating said compartments, the lower compartment having ,any automatically selfclesing lower end, vsaidY slide being movable atrthc will ofthe operator for the purpose of discharging powder from said upper compartaient into saidiow'er compartment,l and means for periodically discharging powder from said lower compartment.

6. In an embossing machine, the Combination of means for supporting a freshly printed sheet and for carrying the same along apredetermined 'path of travel, a powder container, a hopper for supporting said powder container, a slide movably connected with saidhopper and provided with an openingn for dischargingquantities of `powder pass- ,i'ng into said hopperfrom said container',

means for intermittently feeding said quan tities of powder from said ,container into said hopper and, upon said slide thereof,

ysaid. intermittent feed mechanism being'. geared to said slide, means for removing from said sheet so much 'of said powderas fails to adhere to the printed' surface of said sheet, and means for heating'said sheet after such excess of powdei'is removed.

7. 'ln an embossing machine, the comhi-- nation of means for supporting ax freshly printed sheet and for carrying ,said sheet along a predetermined path of travel, a powder container providedwithan opening, said opening being disposedadjacent said path of travel, intermittently operated feed mechanism for discharging quantities of said powder from said powder container, a

yslide. coacting with said feed mechanism and 8. In an embossing machine, the combi nation' of means for supporting in a flat con1 dition a freshly printed sheet and for conveying the same along a predetermined path of travel, powder discharging mechanism for throwing acharge ofpowder uponsaid sheet, pneumatic mechanism for removing so much of said powder as fails to adhere to said sheet, andfcoacting controllable mech- :mism connected `with said powderfdischarg-- mg n'iechanisin and said pneumatic mecha nism for periodically`-actuating the same in unison.`

9. In an embossing machine, the combination of means vforr supporting and convey ing freshly printed piece of stock, powder depositing mechanism for discharging pown der upon said piece ol' stock`- in order -to cause portions of sai d powder to adhere to a printed surface of' said piece of stock, mech* anism for forcing,acurrent of compressed air against said surfa'cein order to remove all portions ofsaid powder failing to ad' here to said surface, and means for heating said piece of stock in order to fusew and hai`- den said portions of powder adhering to 'said printed surface after removal of the means for discharging fusible powder upon Suid piece. of stock, so es t'o cause portions of said powder to adhere to the printed portio s, pneumatic .mechanism for forcing compressed nir against, suidpieee of Stoch, in order to remove those portions of powder which fail to adhere t0 Suid printed surface, vue-num mechanism eoawtinhY with said pneumatic mechanism for displacing and .housing the portions of said powder thus re-r moved from said surface, und means for?y 15 Inline to this Specification in the presence of 20 two snheril'iing witnesses.

ORA E. STRAWN.

'itneses: v

J. L. Nunn',V CMAS. E. DAWSON. 

